{{short description|2015 single by GFriend}} {{Infobox song | name = Glass Bead | cover = | alt = | border = yes | type = single | artist = GFriend | EP = Season of Glass | released = January 15, 2015 | recorded = | studio = | venue = | genre = K-pop | length = 3:23 | label = {{flatlist| *Source *KT}} | writer = {{flatlist| *Iggy *Youngbae}} | producer = {{flatlist| *Iggy *Youngbae}} | prev_title = | prev_year = | next_title = Me Gustas Tu | next_year = 2015 | misc = {{External music video|type=single|{{YouTube|vKMeRMAVaDw|"Glass Bead"}}}} }}
"'''Glass Bead'''" ({{Korean/auto|hangul=^유리구슬|rr=yes}}) is the debut single by South Korean girl group GFriend. It was released by Source Music on January 15, 2015, as the lead single of their debut extended play, ''Season of Glass'' (2015). Written and produced by Iggy and Youngbae,<ref>{{Cite web|url=http://www.melon.com/song/detail.htm?songId=5546489|title=유리구슬 (Glass Bead)|website=Melon|language=ko|access-date=2017-10-17|archive-date=2017-10-18|archive-url=https://web.archive.org/web/20171018070938/http://www.melon.com/song/detail.htm?songId=5546489|url-status=live}}</ref> the song was described by Fuse as a "nostalgic gem that heavily recalls Girls' Generation's earliest work, from the sound to the energetic choreography".<ref>{{Cite news|url=https://www.fuse.tv/2015/12/kpop-debuts-rookies-best#11|title=K-Pop's 2015 Rookies: Who's Working It, & Who Needs Work|work=Fuse|access-date=2017-10-17|archive-date=2017-10-18|archive-url=https://web.archive.org/web/20171018013757/https://www.fuse.tv/2015/12/kpop-debuts-rookies-best#11|url-status=live}}</ref>
The song peaked at number 25 on the Gaon Digital Chart and has sold over 1,025,731 downloads, as of July 2016.<ref>{{Cite web|url=http://gaonchart.co.kr/main/section/chart/online.gaon?nationGbn=T&serviceGbn=S1020&targetTime=07&hitYear=2016&termGbn=month|script-title=ko:국내 대표 음악 차트 가온차트!|website=Gaon Chart|access-date=2018-06-11|archive-date=2019-08-08|archive-url=https://web.archive.org/web/20190808184756/http://gaonchart.co.kr/main/section/chart/online.gaon?nationGbn=T&serviceGbn=S1020&targetTime=07&hitYear=2016&termGbn=month|url-status=live}}</ref>
== Chart performance == The song debuted at number 89 on the Gaon Digital Chart, on the chart issue dated January 11–17, 2015, with 17,730 downloads sold.<ref>{{Cite web|url=http://gaonchart.co.kr/main/section/chart/online.gaon?nationGbn=T&serviceGbn=ALL&targetTime=04&hitYear=2015&termGbn=week|script-title=ko:국내 대표 음악 차트 가온차트!|website=Gaon Chart|access-date=2017-10-17|archive-date=2016-03-07|archive-url=https://web.archive.org/web/20160307203257/http://gaonchart.co.kr/main/section/chart/online.gaon?serviceGbn=ALL&termGbn=week&hitYear=2015&targetTime=04&nationGbn=T|url-status=live}}</ref><ref>{{Cite web|url=http://gaonchart.co.kr/main/section/chart/online.gaon?nationGbn=T&serviceGbn=S1020&targetTime=04&hitYear=2015&termGbn=week|script-title=ko:국내 대표 음악 차트 가온차트!|website=Gaon Chart|access-date=2017-10-17|archive-date=2016-04-02|archive-url=https://web.archive.org/web/20160402151622/http://gaonchart.co.kr/main/section/chart/online.gaon?serviceGbn=S1020&termGbn=week&hitYear=2015&targetTime=04&nationGbn=T|url-status=live}}</ref> In its second week, the song peaked at number 25.<ref name=":0">{{Cite web|url=http://gaonchart.co.kr/main/section/chart/online.gaon?nationGbn=T&serviceGbn=ALL&targetTime=05&hitYear=2015&termGbn=week|script-title=ko:국내 대표 음악 차트 가온차트!|website=Gaon Chart|access-date=2017-10-17|archive-date=2015-04-02|archive-url=https://web.archive.org/web/20150402124557/http://gaonchart.co.kr/main/section/chart/online.gaon?nationGbn=T&serviceGbn=ALL&targetTime=05&hitYear=2015&termGbn=week|url-status=live}}</ref>
In the monthly chart, the song debuted at number 78 for January 2015, with 75,229 downloads sold.<ref>{{Cite web|url=http://gaonchart.co.kr/main/section/chart/online.gaon?nationGbn=T&serviceGbn=ALL&targetTime=01&hitYear=2015&termGbn=month|script-title=ko:국내 대표 음악 차트 가온차트!|website=Gaon Chart|access-date=2017-10-17|archive-date=2016-10-18|archive-url=https://web.archive.org/web/20161018204933/http://gaonchart.co.kr/main/section/chart/online.gaon?nationGbn=T&serviceGbn=ALL&targetTime=01&hitYear=2015&termGbn=month|url-status=live}}</ref><ref>{{Cite web|url=http://gaonchart.co.kr/main/section/chart/online.gaon?nationGbn=T&serviceGbn=S1020&targetTime=01&hitYear=2015&termGbn=month|script-title=ko:국내 대표 음악 차트 가온차트!|website=Gaon Chart|access-date=2017-10-17|archive-date=2016-11-25|archive-url=https://web.archive.org/web/20161125050200/http://gaonchart.co.kr/main/section/chart/online.gaon?nationGbn=T&serviceGbn=S1020&targetTime=01&hitYear=2015&termGbn=month|url-status=live}}</ref> In February, the song rose to number 43, with 81,131 downloads sold.<ref>{{Cite web|url=http://gaonchart.co.kr/main/section/chart/online.gaon?nationGbn=T&serviceGbn=ALL&targetTime=02&hitYear=2015&termGbn=month|script-title=ko:국내 대표 음악 차트 가온차트!|website=Gaon Chart|access-date=2017-10-17|archive-date=2016-03-03|archive-url=https://web.archive.org/web/20160303215654/http://gaonchart.co.kr/main/section/chart/online.gaon?nationGbn=T&serviceGbn=ALL&targetTime=02&hitYear=2015&termGbn=month|url-status=live}}</ref><ref>{{Cite web|url=http://gaonchart.co.kr/main/section/chart/online.gaon?nationGbn=T&serviceGbn=S1020&targetTime=02&hitYear=2015&termGbn=month|script-title=ko:국내 대표 음악 차트 가온차트!|website=Gaon Chart|access-date=2017-10-17|archive-date=2016-03-04|archive-url=https://web.archive.org/web/20160304072247/http://www.gaonchart.co.kr/main/section/chart/online.gaon?nationGbn=T&serviceGbn=S1020&targetTime=02&hitYear=2015&termGbn=month|url-status=live}}</ref> In March, the song peaked at number 39 with 121,825 downloads sold.<ref>{{Cite web|url=http://gaonchart.co.kr/main/section/chart/online.gaon?nationGbn=T&serviceGbn=ALL&targetTime=03&hitYear=2015&termGbn=month|script-title=ko:국내 대표 음악 차트 가온차트!|website=Gaon Chart|access-date=2017-10-17|archive-date=2016-11-20|archive-url=https://web.archive.org/web/20161120085254/http://www.gaonchart.co.kr/main/section/chart/online.gaon?nationGbn=T&serviceGbn=ALL&targetTime=03&hitYear=2015&termGbn=month|url-status=live}}</ref><ref>{{Cite web|url=http://gaonchart.co.kr/main/section/chart/online.gaon?nationGbn=T&serviceGbn=S1020&targetTime=03&hitYear=2015&termGbn=month|script-title=ko:국내 대표 음악 차트 가온차트!|website=Gaon Chart|access-date=2017-10-17|archive-date=2016-11-25|archive-url=https://web.archive.org/web/20161125050200/http://gaonchart.co.kr/main/section/chart/online.gaon?nationGbn=T&serviceGbn=S1020&targetTime=03&hitYear=2015&termGbn=month|url-status=live}}</ref> The song made the year-end chart, as the 95th best selling song of 2015, with 681,925 downloads sold and 29,715,429 streams.<ref>{{Cite web|url=http://gaonchart.co.kr/main/section/chart/online.gaon?nationGbn=T&serviceGbn=ALL&targetTime=2015&hitYear=2015&termGbn=year|script-title=ko:국내 대표 음악 차트 가온차트!|website=Gaon Chart|access-date=2017-10-17|archive-date=2016-03-05|archive-url=https://web.archive.org/web/20160305030907/http://gaonchart.co.kr/main/section/chart/online.gaon?nationGbn=T&serviceGbn=ALL&targetTime=2015&hitYear=2015&termGbn=year|url-status=live}}</ref><ref>{{Cite web|url=http://gaonchart.co.kr/main/section/chart/online.gaon?nationGbn=T&serviceGbn=S1020&targetTime=2015&hitYear=2015&termGbn=year|script-title=ko:국내 대표 음악 차트 가온차트!|website=Gaon Chart|access-date=2017-10-17|archive-date=2016-03-05|archive-url=https://web.archive.org/web/20160305030456/http://gaonchart.co.kr/main/section/chart/online.gaon?nationGbn=T&serviceGbn=S1020&targetTime=2015&hitYear=2015&termGbn=year|url-status=live}}</ref><ref>{{Cite web|url=http://gaonchart.co.kr/main/section/chart/online.gaon?nationGbn=T&serviceGbn=S1040&targetTime=2015&hitYear=2015&termGbn=year|script-title=ko:국내 대표 음악 차트 가온차트!|website=Gaon Chart|access-date=2017-10-17|archive-date=2016-08-14|archive-url=https://web.archive.org/web/20160814220707/http://gaonchart.co.kr/main/section/chart/online.gaon?nationGbn=T&serviceGbn=S1040&targetTime=2015&hitYear=2015&termGbn=year|url-status=live}}</ref>
== Charts == {| class="wikitable sortable plainrowheaders" style="text-align:center;" !Chart (2015) !Peak position |- ! scope="row" |South Korea (Gaon Digital Chart)<ref name=":0" /> |25 |}
== References == {{reflist}}
{{GFriend}}
{{authority control}}
Category:2015 songs Category:2015 debut singles Category:GFriend songs Category:Songs in Korean Category:Hybe singles